Car-truck.



No. 885,818. PATENTED APR. 28, 1908. F. M. WHYTE.

CAR TRUCK.

APPLICATION PILBD'JULYzz, 1907.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

FREDERIC M. WHYTE, OF TARRYTOWN, NEW YORK.

can-Timex.

Specication of Letters Patent.

Patented April 28, 1908.

Application mea July 22, 1907. serial no. 384,996.

To all whom 'it may concern:

Be it known .thatll FREDERIC M. WHYTE, of Tarrytown, in the county of Westchester and State of New York, have invented a certain new and useful Improvement in Car- Trucks, of 'Whlch improvement the followlng is a specification.

My invention. relates to car trucks ofthe class in which the Weight of the car body is 'transmitted t'o the truckfra'me through a spring supported bolster, -and its object is to provide simple, effective, and inexpensive means whereby the bolster may be readily inserted in, .and'removed from, operative position, and be suitably guided in its vertical 'movements relatively tothe truck frame.

The improvement claimed is hereinafter fully set forth.

In the accompanying drawings: Figure 1 is-a side View, partly in section, of a car truck embody' my invention; Fig. 2, a half plan vieW,-part yin section', of the same.; Fig. `3, a

. vertical transverse section through the vsame ;l

Fig., 4', a side view of a bolster guide, detached Fig. 5, a plan view of the same; Fig.

6, a vertical transverse section through the bolster, on theline a cof Fig. 7, illustrating a modification' of structural detail; Fig. 7, a

horizontal section through the same, on the line b `b' of Fig. 6, Fig. 8, a vertical transverse' sectionthrough` the bolster, on the line c c ot Fig. 9, illustrating another structural modifi'- cation; 9, a horizontal section. through the same, onfthe lined dofFig'. -8; Figs. -10 and 12, vertical longitudinal sections through holsters, at and adjoining theirends, showin means for maintaining them in normal p l` re ation to; their'sUppQrting sprrings; Figs. 11

7 and 13., horizontal sections t horizontal section throulgh 1g j tion. v

-M invention is herein exemplified as ap in a 'car truck of the diamond or arch' ough the bolster columns and bolster! vides ofthelc'son'e` structions of Figs.v 10 an `-12,2respectively;-

Fig.' 14, a vertical section'through the upper portion of a bolster column, showing anot er st ructural-modification;r Fi 1,5, -a 4horizoiital section through-a pair o bolster columns and column 4guides of the 'construction of Fig."

14 ;4 F' 16,l a vertical transverse lsection throng the endportionzof `a bolster, showing another structuralfmodiication; Fig.' .17, a thesame, on the line c e of Fig. 16; and,- 18, a similar section, showing another `structural modilic'a-A lie \ ar type, thesideramesrof which are, this The out variationof structural or o erative rinciple, in connection with side. ames o the standard built'up or bar type. A bolster, 8, carrying the usual center casting, 9., is supported on springs, 10 seated in the spaces.

etWeen the bolster'columns, 3, and is adapted tomove vertically in the upper portions of said spaces, as in the ordinary constructions 'of car trucks of this general'type.

,In the practice of myinvention, the maxi mum width of the bolster, 8, does not exceed that which will permit it to be inserted iiiA and removed lfrom its operative position by being ,passed through the spaces between the bolster columns, 3, of thetruck -siile frames, and the bolster is provided on each of its sides, adjacent to each of its ends, with a pair of vertical lips or lianlges, 8, the distance between the lips or ilanges of each pairjbeing greater than vthe Width, in transverse section, ,of the bolster columns. Bolster guides, the preferred` construction4 of which is clearly shown in Figs. 1 to. 5'inclusive, are fitted between-each end of the bolster and the adjacent .bolster columns, each of said idesitt'v between a pair of the lips or adjacent bolster column, 3. The bolster guides comprisesJ vertical body, 11, having lateral lips or iianges, 11, and a lateral eX-' oppositely ltension ory base, 11", projectingl from, and substantially at a rig tangle. to, the body, 11. Thev bodies, 11, ofthe bolster guides 'it in thes aces between the lips or ilanges, 8., of the olster; the bases, 11", fit

'in lateral recesses, 8b, cutthrou hthe bottom-web. of the bolster, below which they do 'not' project, andthe lips or flanges, 11", t

on o posite sides of the bolster columns, 3. lsterguides are held in position, as 'against downward displacement, by the boi- .ster springs, 10, with which they contact, either directly, as in the instance shown, or `through the caps of said springs, Whenspring caps are used and are prevented from upnges, 81,0 the bolster, and itting over the ward displacement by theirengagement with the bottom recesses, 88, of the bolster, and from lateral. displacement by the engagement of their lateral lips or flanges with the bolster columns. Under the above described construction, the leading and characteristic feature of which is the means provided for effecting a tongue and groove engagement of aV bolster, bolster columns, and interposed bolster guides, it will be seen that the bolster guides are movable vertically with the bolst'er, and guide it, in its vertical movements, by their relation to the bolster columns, while permitting its ready insertion in, and removal from, the truck frame as desired.

The bolster is inserted through the space between the bolster columns of one of the side frames, and moved longitudinally and upwardly to its operative' position in the truck frame; the bolster guides are then slid upwardly on the bolster columns, until their bases t' in the bottom recesses of the bolster, and the bolster springs, and their caps if used, are placed in position. The removal of the bolster is effected by the same operations, in reverse order, which, for either insertion or removal, may be readily and expeditiously effected, and it will be seen that the opening or space between the bolster columns may be made of uniform width throughout.

Various modifications of structural detail may be made, in the discretion of theconstructor, without departure from the spirit and essential and characteristic features of my invention. Thus, for exam le, as shown in Figs. 6, 7, 16 and 17, the ases of the bolster guides may be extended u wardly through the bottom web and detacha ly connected to the bolster by locks, 11, (Fi s. 6 and 7) or pins, 11a, (Figs. 16 and 17). n the latter case, the laterally extending base portion, 11b, of the bolster guide, is turned from the bottom to the side thereof, so as to form a vertical web', 11e, which passes through the bottom recess, 8b, of the bolster, and receives` the pin, 11d, which -passes vthrough a pair of vertical flanges, 8"', on the bolster. n

As shown in Figs. 8 and 9, the lateral lips or fianges, 11, of the bolster guides, are omitted, and, as their mechanical equivalent, similar lips or flanges, 3a, between which the bodies of the bolster uides fit, are formed on the bolster columns,

In the structural modifications shown in Figs. 10 to 13 inclusive, which are designed for application in cases where spring caps are not used, the bolster guides are similar, and similarly fitted, to those first above described, and projections are formed 'on the bottom of the bolster to retain the bolster' springs, 10,

in normal relation thereto, said projectionsl being shown in Figs. 10 and 11, in the form of curved webs, 8d, extending partially around the upper ends of the s rings, and, in Figs. 12 and 13, as cylindrica lugs, Se, 'fitting 1nside the springs.

Figs. 14 and 15 show a modification in which the bolster columns, 3, are slightly widened below the bolster guides, so as to form seats or shoulders, 3b, on which the bolster guides rest.

Fig. 18 shows another modification, in which the engagement of the bolster guides with the bolster and bolstercolumns is effected in a similar manner to that in the construction iirst above described, but, as'a mechanical equivalent, in lieu of forming pairs of vertical lips or flanges, 8f, on the bolster, corresponding pairs of Vertical lips or flanges, llf, are formed on the adjacent sides of the bodies of the bolster guides, and lateral tongues or projections, 8e, fitting between said flanges, are formed on the bolster.

Other variations of structural detail, embodying the essential features of my invention, may be made, without departure therefrom, by those skilled in the art of railroad car construction. j

I claim as my invention and desire to secure by Letters Patent:

1. A truck bolster having pairs of vertical guide flanges on its sides adjacent to its ends, and having its lower web cut away at its sides between the guide fianges for the reception of bolster guides.

2. ,A truck bolster having pairs of vertical guide flanges on its sides adjacent to its ends, and recesses on its lower slde extending inwardly from the spaces between the guide flanges and extending entirelythrough the bottom web of the bolster at their central portions.

3. A truck bolster having pairs of vertical guide flanges on its sides adjacent to its ends, recesses on its lower side extendin inwardly from the spaces between the guide flanges, and downwardly extending projections on its lower side adjacent to saidrecesses'.

4. In a car truck, the combination of aside frame having a pair of vertical bolster columns, a bolster having pairs of vertical guide iianges on its sides adjacent to its ends, and having its lower web cut away at its sides between the guide flanges, and bolster uides having bodies fitting between said anges and having a'tongue and groove engagement with the bolster columns and lateral extensions fitting in the cut away portions of 'the lower web of the bolster.

FREDERIC M. WHYTE.

Witnesses:

J. SNowDEN BELL, RoB'r. S. KEARNEY. 

